diff --git a/builtin/update-microsoft-git.c b/builtin/update-microsoft-git.c
index 329f6d77c0d1c9..8c4d2bd6a8b14d 100644
--- a/builtin/update-microsoft-git.c
+++ b/builtin/update-microsoft-git.c
@@ -2,11 +2,31 @@
 #include "repository.h"
 #include "parse-options.h"
 #include "run-command.h"
+#include "strvec.h"
 
+#if defined(GIT_WINDOWS_NATIVE)
+/*
+ * On Windows, run 'git update-git-for-windows' which
+ * is installed by the installer, based on the script
+ * in git-for-windows/build-extra.
+ */
 static int platform_specific_upgrade(void)
 {
+	int res;
+	struct strvec args = STRVEC_INIT;
+
+	strvec_push(&args, "git-update-git-for-windows");
+	res = run_command_v_opt(args.v, 0);
+	strvec_clear(&args);
+	return res;
+}
+#else
+static int platform_specific_upgrade(void)
+{
+	error(_("update-microsoft-git is not supported on this platform"));
 	return 1;
 }
+#endif
 
 static const char builtin_update_microsoft_git_usage[] =
 	N_("git update-microsoft-git");